1. Carburetors & Throttlebodies ATV For Sale
  2. sku: 17380162411312813
  3. MIKUNI 5GTE-00

MIKUNI 5GTE-00 Carb Carburetor Intake Manifolds

fits model: Yfm600, 600, Grizzly. make: Yamaha. year: 1998–2001.

5gte-00 Mikuni Carb Carburetor For Yamaha Grizzly 600 Yfm600 And Intake Manifolds 1998-2001

( Brand: Mikuni ), ( Manufacturer Part Number: 5GTE-00 ), ( Non-domestic Product: No ), ( Machine Type: Atv ), ( Fit 2: For Yamaha Grizzly 600 Yfm600fh 4x4 Hunter Edition 2000-2001 ), ( Fit 1: For Yamaha Grizzly 600 Yfm600f 4x4 2000-2001 ), ( Material: Aluminum ), ( Fit 3: For Yamaha Grizzly 600 Yfm600fwa 4x4 1998-1999 ), ( Engine Type: 4-stroke ), ( Choke Type: Mechanical ), ( Type: Carburetor ), ( Manufacturer Warranty: 90 Day ), ( Oe/oem Part Number: E055 ), ( Features: Jetting, Throttled ), ( Country Of Origin: United States ), ( Part Type: Carburetors Throttlebodies )

Review MIKUNI Carb Carburetor Yamaha And Intake Manifolds fits GRIZZLY YFM600 600 1998–2001

The **Mikuni 5GTE-00 carburetor** is a precision-engineered, high-performance fuel delivery system meticulously designed to enhance the throttle response, power output, and overall drivability of the Yamaha Grizzly 600 (YFM600) models produced between 1998 and 2001. Built to replace the stock carburetor while maintaining compatibility with the original intake manifolds, this aftermarket upgrade represents a significant leap in performance tuning for this iconic ATV. The 5GTE-00 features a **50mm venturi bore**, a key specification that ensures optimized airflow and fuel atomization, allowing for a richer, more consistent mixture under varying load conditions whether cruising on rough terrain or unleashing bursts of acceleration. Crafted from high-grade aluminum with a durable anodized finish, the carburetor is both lightweight and resistant to corrosion, ensuring longevity even in the harshest off-road environments. Its **floating bowl design** allows for easy maintenance and cleaning, while the **precision-machined jets and needles** provide fine-tuned control over fuel delivery, reducing hesitation and improving throttle smoothness. The Mikuni 5GTE-00 also incorporates a **high-flow pilot jet system**, which enhances idle stability and cold-start performance, making it ideal for riders who demand reliability in all conditions. Whether paired with stock components or integrated into a more extensive performance build such as upgraded intake manifolds, high-flow air filters, or exhaust systems the 5GTE-00 delivers a noticeable boost in horsepower and torque while retaining the Grizzly s signature off-road agility. For enthusiasts seeking a balance of ease of installation, proven performance, and durability, this carburetor stands as a standout choice, offering a direct path to unlocking the full potential of the YFM600 s engine.

The Mikuni 5GTE-00 carburetor is a popular upgrade for the Yamaha Grizzly 600 (YFM600) from 1998 to 2001, but it comes with both advantages and drawbacks. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

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### **Pros of the Mikuni 5GTE-00 Carburetor for the YFM600 (1998-2001)**

1. **Improved Performance and Throttle Response**

The 5GTE-00 is a high-performance carburetor designed for better fuel-air mixture control, leading to smoother acceleration and stronger low-to-midrange power. It features a larger bore and more precise metering than the stock Mikuni VM carburetor, allowing for better airflow and fuel delivery, especially under load.

2. **Better Fuel Efficiency (Under Certain Conditions)**

While fuel economy may not improve dramatically, the 5GTE-00 s improved atomization and mixture control can reduce fuel waste compared to a poorly adjusted stock carburetor, particularly if the bike is tuned properly.

3. **Easier to Tune and Adjust**

The 5GTE-00 has a more straightforward tuning process with clearly labeled jets and adjustable idle mixture screws. This makes it easier for riders to fine-tune the carburetor for optimal performance without requiring extensive modifications.

4. **Compatibility with Stock Intake Manifold (With Modifications)**

The stock Yamaha intake manifold can be used with the 5GTE-00, but it requires minor modifications such as:

- Drilling out the idle mixture screws for better airflow.

- Adjusting the throttle linkage for smoother operation.

- Possibly adding a throttle stop screw to prevent excessive throttle opening.

These changes are relatively simple and cost-effective compared to purchasing a new manifold.

5. **Durability and Reliability**

Mikuni carburetors are known for their durability, especially when properly maintained. The 5GTE-00 is a robust unit that can handle the demands of a stock or lightly modified engine without excessive wear.

6. **Aftermarket Support and Availability**

The 5GTE-00 is widely available in the aftermarket, with numerous tuning guides, jet kits, and replacement parts available. This makes it easier to troubleshoot issues or upgrade components as needed.

7. **Potential for Future Upgrades**

If you plan to further modify your Grizzly (e.g., adding a header, exhaust, or ECU), the 5GTE-00 provides a solid foundation for those upgrades. It can be paired with a larger air filter, performance exhaust, or even a mild header without immediate issues.

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### **Cons of the Mikuni 5GTE-00 Carburetor for the YFM600 (1998-2001)**

1. **Requires Modifications to Stock Intake Manifold**

While possible, using the stock manifold with the 5GTE-00 is not plug-and-play. You ll need to:

- Drill out the idle mixture screws (often too small for the 5GTE-00 s airflow).

- Adjust the throttle linkage for proper opening angles.

- Potentially add a throttle stop screw to prevent the throttle from opening too wide, which can cause rough idle or stalling.

These modifications add labor time and may require machining or welding skills.

2. **Potential for Rich Mixture and Running Issues**

The 5GTE-00 s larger capacity can lead to a richer mixture if not properly tuned, especially on the stock engine. This can result in:

- Excessive fuel consumption.

- Fouling of spark plugs.

- Potential for carbon buildup in the combustion chamber over time.

Proper jet selection and tuning are critical to avoid these issues.

3. **Limited Power Gains Without Further Modifications**

While the 5GTE-00 improves throttle response and low-end power, it does not provide dramatic horsepower gains on its own. For significant power increases, you would need to pair it with:

- A performance exhaust system.

- A header or modified intake.

- An ECU tune (if available for your model).

If you re only looking for a "quick fix" for better drivability, the gains may be modest.

4. **Potential for Rough Idle or Tuning Challenges**

The 5GTE-00 can be finicky to tune, especially on a stock engine. The stock engine s compression and camshaft characteristics may not pair perfectly with the carburetor s airflow, leading to:

- Rough idle or hesitation at low RPMs.

- Difficulty finding the optimal idle mixture setting.

This requires patience and possibly multiple adjustments to the jets and idle screws.

5. **Cost of Additional Components**

While the carburetor itself is affordable, you may need to invest in:

- A performance air filter (e.g., K&N or similar) to complement the carburetor.

- A throttle body gasket or intake manifold gasket to ensure a proper seal.

- A jet kit (e.g., Mikuni or Keihin) for tuning flexibility.

These additional costs add up, especially if you re not already running aftermarket parts.

6. **Compatibility Issues with Some Modifications**

If you plan to add a header or exhaust system, the 5GTE-00 may require further tuning to prevent backpressure issues or lean conditions at higher RPMs. The stock engine s stock camshaft and carburetor setup is balanced for the original intake, so changes can disrupt the equilibrium.

7. **Maintenance Requirements**

Like any high-performance carburetor, the 5GTE-00 requires regular cleaning and maintenance to prevent clogging or poor performance. This includes:

- Cleaning the float bowl and jets periodically.

- Checking and adjusting the idle mixture screws.

- Ensuring the throttle cables are clean and properly lubricated.

Neglecting maintenance can lead to performance degradation or failure.

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### **Conclusion**

The Mikuni 5GTE-00 carburetor is a solid upgrade for the Yamaha Grizzly 600 (1998-2001) if you re looking to improve throttle response, low-end power, and drivability. It offers better tuning flexibility and performance than the stock VM carburetor, especially when paired with minor manifold modifications. However, it is not a "set-and-forget" solution it requires attention to tuning, potential modifications to the intake manifold, and additional components to fully realize its benefits.

The biggest drawbacks are the need for manual adjustments to the stock manifold and the risk of running issues if the carburetor is not properly tuned. If you re already running aftermarket parts (e.g., a performance exhaust or header), the 5GTE-00 can be a logical next step. If you re keeping the bike stock or mostly stock, the gains may be limited, and the effort required for tuning could outweigh the benefits.

---

### **Recommendation**

**Install the Mikuni 5GTE-00 if:**

- You want smoother throttle response and better low-end power without a full engine rebuild.

- You re already running or plan to run a performance exhaust, header, or other modifications that will benefit from the carburetor s improved airflow.

- You re willing to invest time in tuning the carburetor and making minor modifications to the intake manifold.

- You prefer a carburetor over a fuel injection system (which would require more extensive modifications for the YFM600).

**Avoid the Mikuni 5GTE-00 if:**

- You want dramatic power gains without additional modifications (e.g., header, exhaust, or ECU tune).

- You dislike tuning or are not comfortable adjusting carburetor settings.

- You re keeping the bike stock or mostly stock and want minimal changes.

- You prefer a simpler, more foolproof upgrade (e.g., a performance exhaust or air filter).

**Alternative Considerations:**

- If you re not ready for a carburetor upgrade, consider a **performance air filter** (e.g., K&N) or a **high-flow exhaust system** first, as these can improve power and throttle response without the tuning complexity.

- If you eventually want fuel injection, research **aftermarket fuel injection kits** (e.g., from Walbro or Mikuni) for the YFM600, though these are more complex and expensive.

- If you re open to simpler carburetor upgrades, a **Mikuni VM-26** (a slightly larger version of the stock carb) may offer better airflow with fewer tuning headaches, though it still requires some adjustments.

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**Final Verdict:** The Mikuni 5GTE-00 is a worthwhile upgrade for the YFM600 if you re committed to tuning and minor modifications, but it s not a "magic bullet" for power gains. Weigh the effort required against the benefits you expect to see before installing it.

Details:

The Carburetor for Yamaha Grizzly 600 YFM600 is a OEM.

specifications carbthrotatv:

  • for models: Yfm600, 600, Grizzly
  • for makes: Yamaha
  • for years: 1998-2001
  • brand: Mikuni
  • mpn: 5gte-00
  • non-domestic product: No
  • machine type: Atv
  • fit 2: For Yamaha Grizzly 600 Yfm600fh 4x4 Hunter Edition 2000-2001
  • fit 1: For Yamaha Grizzly 600 Yfm600f 4x4 2000-2001
  • material: Aluminum
  • fit 3: For Yamaha Grizzly 600 Yfm600fwa 4x4 1998-1999
  • engine type: 4-stroke
  • choke type: Mechanical
  • type: Carburetor
  • manufacturer warranty: 90 Day
  • oe/oem part number: E055
  • features: Jetting, Throttled
  • country of origin: United States
  • part type: Carburetors Throttlebodies

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  • started: April 27, 2026
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general carbthrotatv:

  • condition: Used
  • ATV, Side-by-Side UTV Parts Accessories > Air Intake Fuel Delivery > Carburetors
for models: yfm600, 600, grizzly, for makes: yamaha, for years: 1998-2001, non-domestic product: no, machine type: atv, fit 2: for yamaha grizzly 600 yfm600fh 4x4 hunter edition 2000-2001, fit 1: for yamaha grizzly 600 yfm600f 4x4 2000-2001, fit 3: for yamaha grizzly 600 yfm600fwa 4x4 1998-1999, engine type: 4-stroke, choke type: mechanical, type: carburetor, manufacturer warranty: 90 day, oe/oem part number: e055, features: jetting, throttled, country of origin: united states, part type: carburetors throttlebodies,
category: atv parts > atv, side-by-side utv parts accessories > air intake fuel delivery > carburetors, material: aluminum, sku: 17380162411312813,
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